package com.test.mall.auth.controller;

import com.alibaba.fastjson.TypeReference;
import com.test.common.constant.AuthServerConstant;
import com.test.common.exception.BizCodeEnume;
import com.test.common.utils.R;
import com.test.common.vo.MemberRespVo;
import com.test.mall.auth.feign.MemberFeignService;
import com.test.mall.auth.feign.ThirdPartFeignService;
import com.test.mall.auth.vo.UserLoginVo;
import com.test.mall.auth.vo.UserRegistVo;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.redis.core.StringRedisTemplate;
import org.springframework.mail.MailParseException;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;


import javax.servlet.http.HttpSession;
import javax.validation.Valid;
import java.util.HashMap;
import java.util.Map;
import java.util.concurrent.ThreadLocalRandom;
import java.util.concurrent.TimeUnit;
import java.util.stream.Collectors;

@Controller
public class LoginController {

    @Autowired
    StringRedisTemplate redisTemplate;

    @Autowired
    ThirdPartFeignService thirdPartFeignService;

    @Autowired
    MemberFeignService memberFeignService;

    /**
     * 发送一个请求直接跳到一个页面
     * springmvc viewcontroller:将请求和页面映射过来
     * @return
     */
    @ResponseBody
    @GetMapping("/sms/sendCode")
    public R sendCode(@RequestParam("number") String number){

        //TODO 接口防刷

        String redisCode = redisTemplate.opsForValue().get(AuthServerConstant.SMS_CODE_CACHE_PREFIX + number);
        if (!StringUtils.isEmpty(redisCode)){
            long l = Long.parseLong(redisCode.split("_")[1]);
            if (System.currentTimeMillis()-l<60000){
                return R.error(BizCodeEnume.SMS_CODE_EXCEPTION.getCode(), BizCodeEnume.SMS_CODE_EXCEPTION.getMsg());
            }
        }
        // 生成随机的四位数字
        int randomNumber = ThreadLocalRandom.current().nextInt(1000, 10000);

        // 将数字转换为字符串格式并添加前缀
        String code = "code:" + randomNumber;

        String currCode=randomNumber+"_"+System.currentTimeMillis();
        //redis缓存存验证码，包含手机号
        redisTemplate.opsForValue().set(AuthServerConstant.SMS_CODE_CACHE_PREFIX+number,currCode,15, TimeUnit.MINUTES);

        thirdPartFeignService.sendCode(number,code);
        return R.ok();
    }

    @PostMapping("/regist")
    public String regist(@Valid UserRegistVo vo, BindingResult result, RedirectAttributes redirectAttributes){
        if (result.hasErrors()){
            /**
             * .map(fieldError -> {
             *                 String field = fieldError.getField();
             *                 String defaultMessage = fieldError.getDefaultMessage();
             *                 errors.put(field,defaultMessage);
             *                 return
             *                 })
             */
            Map<String, String> errors = result.getFieldErrors().stream().collect(Collectors.toMap(fieldError -> {
                return fieldError.getField();
            }, fieldError -> {
                return fieldError.getDefaultMessage();
            }));
//            model.addAttribute("errors",errors);
            redirectAttributes.addFlashAttribute("errors",errors);
            //校验出错转发到注册页
            return "redirect:http://auth.testmall.com/reg.html";
        }
        //校验验证码
        String code = vo.getCode();
        String s = redisTemplate.opsForValue().get(AuthServerConstant.SMS_CODE_CACHE_PREFIX + vo.getPhone());
        if(!StringUtils.isEmpty(s)){
            if (code.equals(s.split("_")[0])){
                //删除验证码;令牌机制
                redisTemplate.delete(AuthServerConstant.SMS_CODE_CACHE_PREFIX + vo.getPhone());
                //验证码通过，真正注册
                R r = memberFeignService.regist(vo);
                if (r.getCode() == 0){
                    //成功
                    return "redirect:http://auth.testmall.com/login.html";
                } else {
                    Map<String, String> errors = new HashMap<>();
                    errors.put("msg",r.getData("msg",new TypeReference<String>(){}));
                    redirectAttributes.addFlashAttribute("errors",errors);
                   return "redirect:http://auth.testmall.com/reg.html";
                }

            } else {
                Map<String, String> errors = new HashMap<>();
                errors.put("code","验证码错误");
                redirectAttributes.addFlashAttribute("errors",errors);
                return "redirect:http://auth.testmall.com/reg.html";
            }
        } else {
            Map<String, String> errors = new HashMap<>();
            errors.put("code","验证码错误");
            redirectAttributes.addFlashAttribute("errors",errors);
            return "redirect:http://auth.testmall.com/reg.html";
        }
    }

    @GetMapping("/login.html")
    public String loginPage(HttpSession session){
        Object attribute = session.getAttribute(AuthServerConstant.LOGIN_USER);
        if (attribute == null){
            return "login";
        } else {
            return "redirect:http://testmall.com";
        }

    }

    @PostMapping("/login")
    public String login(UserLoginVo vo, RedirectAttributes redirectAttributes,
                        HttpSession session){
        //远程登录
        R login = memberFeignService.login(vo);
        if (login.getCode()==0){
            //成功
            MemberRespVo data = login.getData("data", new TypeReference<MemberRespVo>(){});
            System.out.println("数据："+data);
            session.setAttribute(AuthServerConstant.LOGIN_USER,data);
            return "redirect:http://testmall.com";
        } else {
            Map<String,String> errors = new HashMap<>();
            errors.put("msg",login.getData("msg",new TypeReference<String>(){}));
            redirectAttributes.addFlashAttribute("errors",errors);
            return "redirect:http://auth.testmall.com/login.html";
        }

    }




}
